sb/intel/common: Fix style issue in spi.c

Change-Id: Ife8f7f164b26bea65a0dcde0cab339a1bb599e38
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/29834
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan T <stefan.tauner@gmx.at>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/southbridge/intel/common/spi.c

@@ -345,7 +345,7 @@ void spi_init(void)
 		cntlr->fpr_max = 5;
 
 		if (cntlr->hsfs & HSFS_FDV) {
-			writel_ (4, &ich9_spi->fdoc);
+			writel_(4, &ich9_spi->fdoc);
 			cntlr->flmap0 = readl_(&ich9_spi->fdod);
 			writel_ (0x1000, &ich9_spi->fdoc);
 			cntlr->flcomp = readl_(&ich9_spi->fdod);